I would say so, yes. At least that what it seems to imply.
Though his head is extending backwards his skull and face remains in place under a new translucent like skin. Almost like the original Alien with it's prominent human skull under a transparent dome.
And since that black stuff was essentially xeno-juice (it weaponises all it touches by turning it's victims into crazed xeno hybrids capable of infecting others with the squidburster parasite), I guess that above image pretty much nails it.